{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "When the androgens were withdrawn , the patient ' s physical changes , symptoms , sleep study , and supraglottic resistance all returned to normal ."}
{"Chemical": ["androgens"], "Disease": []}